Page 24 of 82

INSTRUMENT AND CONTROL FUNCTIONS
3-10
3
CAUTION:
ECA10070
Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted surfac-es or plastic parts.
EAU13320
CAUTION:
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,as well as to the exhaust system.
Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different brandor premium unleaded fuel. Use of un-
leaded fuel will extend spark plug life
and reduce maintenance costs.
EAU13441
Catalytic converter This vehicle is equipped with catalytic
converters in the exhaust system.
WARNING
EWA10860
The exhaust system is hot after op-
eration. Make sure that the exhaust
system has cooled down before do-ing any maintenance work.CAUTION:
ECA10700
The following precautions must be
observed to prevent a fire hazard or
other damages.
Use only unleaded gasoline.
The use of leaded gasoline will
cause unrepairable damage to
the catalytic converter.
Never park the vehicle near pos-
sible fire hazards such as grass
or other materials that easily
burn.
Do not allow the engine to idletoo long.
Recommended fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity:
17.0 L (4.49 US gal) (3.74 Imp.gal)
Fuel reserve amount:
4.5 L (1.19 US gal) (0.99 Imp.gal)
U5YSE1E0.book Page 10 Monday, November 7, 2005 8:38 AM
Page 25 of 82

INSTRUMENT AND CONTROL FUNCTIONS
3-11
3
EAU13550
Fuel cock The fuel cock supplies fuel from the
tank to the carburetors while also filter-
ing it.
The fuel cock lever positions are ex-
plained as follows and shown in the il-
lustrations.
OFF
With the fuel cock lever in this position,
fuel will not flow. Always turn the fuel
cock lever to this position when the en-
gine is not running.ON
With the fuel cock lever in this position,
fuel flows to the carburetors. Turn the
fuel cock lever to this position when
starting the engine and riding.
RESThis indicates reserve. With the fuel
cock lever in this position, the fuel re-
serve is made available. Turn the fuel
cock lever to this position if you run out
of fuel while riding. When this occurs,
refuel as soon as possible and be sure
to turn the fuel cock lever back to “ON”!1. Pointed end positioned over “OFF”
1. Pointed end positioned over “ON”
1. Pointed end positioned over “RES”
U5YSE1E0.book Page 11 Monday, November 7, 2005 8:38 AM
Page 74 of 82

SPECIFICATIONS
8-1
8
Dimensions:Overall length:
2460 mm (96.9 in)
Overall width:
945 mm (37.2 in)
Overall height:
1095 mm (43.1 in)
Seat height:
710 mm (28.0 in)
Wheelbase:
1645 mm (64.8 in)
Ground clearance:
140 mm (5.51 in)
Minimum turning radius:
3400 mm (133.9 in)Weight:With oil and fuel:
291.0 kg (642 lb)Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
V-type 2-cylinder
Displacement:
1063.0 cm³ (64.86 cu.in)
Bore × stroke:
95.0 × 75.0 mm (3.74 × 2.95 in)
Compression ratio:
8.30 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Type:
SAE10W30 or SAE10W40 or SAE15W40
or SAE20W40 or SAE20W50
Recommended engine oil grade:
API service SE, SF, SG type or higher
Engine oil quantity:
Without oil filter element replacement:
3.00 L (3.17 US qt) (2.64 Imp.qt)
With oil filter element replacement:
3.10 L (3.28 US qt) (2.73 Imp.qt)Final gear oil:Type:
SAE80 API GL-4 Hypoid gear oil
Quantity:
0.19 L (0.20 US qt) (0.17 Imp.qt)Air filter:Air filter element:
Dry elementFuel:Recommended fuel:
Regular unleaded gasoline onlyFuel tank capacity:
17.0 L (4.49 US gal) (3.74 Imp.gal)
Fuel reserve amount:
4.5 L (1.19 US gal) (0.99 Imp.gal)
Carburetor:Manufacturer:
MIKUNI
Type × quantity:
BSR37 x 2Spark plug (s):Manufacturer/model:
NGK/BPR7ES
Manufacturer/model:
DENSO/W22EPR-U
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction system:
Spur gear
Primary reduction ratio:
78/47 (1.660)
Secondary reduction system:
Shaft drive
Secondary reduction ratio:
44/47 × 19/18 × 32/11 (2.875)
Transmission type:
Constant mesh 5-speed
Operation:
Left foot operation
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40
U5YSE1E0.book Page 1 Monday, November 7, 2005 8:38 AM